146 - Fuel Planning Advice |
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FabioL
P/UT Joined: 04 Aug 2012 Location: Surrey Points: 98 |
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Posted: 25 Aug 2012 at 5:46pm |
Aerotexas now has data for the RJ85.
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Jack0913
Check-In Staff Joined: 25 Aug 2012 Location: Australia Points: 2 |
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Try FUELPLAN2 it has data for the 146/RJ85 and printable Load sheet as well.
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FabioL
P/UT Joined: 04 Aug 2012 Location: Surrey Points: 98 |
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Hi Dan,
Many thanks for this; yes, I'm interested in being able to plan fuel req's for the JF 146. I too have been doing some calcs based on flights. I'm looking at fuel used to TOC using a generic multiplier for FL, with static allowances for taxi, divertions, holds, and contingency, so giving a total fuel req'd to shutdown at the gate, in a similar way to the very useful Aerotexas site. Someone posted (on Pilotweb?) to plan the cruise on 2000-2200 Kg/Hr, or 5.7 Kg/nm plus 600 Kg for the climb, but these give different figures, so I'm averaging. Aerotexas uses constants for holds and diversions, and (I think) 5% for contingency; to this, I've added 30Kg for taxiing. The trouble is that I have only collected data from two flights - I've done loads more, but I forget to get the figures at TOC and at the gate! Still, I'm getting there - let's see what we can come up with! Fabio |
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gojozoom
Check-In Staff Joined: 13 Aug 2012 Points: 2 |
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Hi Fabio,
I assume you're request is for the Justflight model. I've been measuring an average fuel consumption for that for some time now. According to my calculations, the average is 7500 lb/h (including climb and descent). This doesn't align with the official data: Capacity: 22000 lbs Range: 1800 nm In my experience, ground speed doesn't get much higher than 350-360 KTS. Based on that, the fuel should last for 5 hours. Well it doesn't. I'm lucky if I get 3 hours out of it... Dan |
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FabioL
P/UT Joined: 04 Aug 2012 Location: Surrey Points: 98 |
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Hi,
Has anybody got any advice about effective fuel planning for the 146? The Aerotexas site has an option for the 146, but no data. Thanks, Fabio |
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